Compilare: user.cpp: In function ‘int main()’: user.cpp:61:9: warning: unused variable ‘t’ [-Wunused-variable] int t,q,i,j,ti,l1,l2,r1,r2,te; ^ user.cpp:61:15: warning: unused variable ‘j’ [-Wunused-variable] int t,q,i,j,ti,l1,l2,r1,r2,te; ^ user.cpp:59:36: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("mediana.in","r",stdin); ^ user.cpp:60:38: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("mediana.out","w",stdout); ^ user.cpp:63:42: warning: ignoring return value of ‘size_t fread(void*, size_t, size_t, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] fread(si,sizeof(char),nmax*200,stdin); ^